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Finding the Fourth Proportional to 2,042.49, 3,062.73 and 655.50

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Solution

The fourth proportional to 2,042.49, 3,062.73 and 655.50 is: 982.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,042.49 : 3,062.73 = 655.50 : x
  2. Step 2: Convert to fraction form
    2,042.49/3,062.73 = 655.50/x
  3. Step 3: Cross multiply
    2,042.49x = 3,062.73 × 655.50
  4. Step 4: Simplify right side
    2,042.49x = 2,007,619.52
  5. Step 5: Solve for x
    x = 2,007,619.52/2,042.49
  6. Step 6: Final answer
    x = 982.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.